astrophysics quotes

What goes on inside a star is better understood than one might guess from the difficulty of having to look at a little dot of light through a telescope, because we can calculate what the atoms in the stars should do in most circumstances.

The Planck satellite may detect the imprint of the gravitational waves predicted by inflation. This would be quantum gravity written across the sky.

Observations indicate that the universe is expanding at an ever increasing rate. It will expand forever, getting emptier and darker.

It’s a pity that nobody has found an exploding black hole. If they had, I would have won a Nobel prize.

My first popular book, ‚A Brief History of Time,‘ aroused a great deal of interest, but many found it difficult to understand.

The missing link in cosmology is the nature of dark matter and dark energy.

Time can behave like another direction in space under extreme conditions.

Only black holes of very low mass would emit a significant amount of radiation.

If the rate of expansion one second after the Big Bang had been smaller by even one part in a hundred thousand million million, it would have recollapsed before it reached its present size. On the other hand, if it had been greater by a part in a million, the universe would have expanded too rapidly for stars and planets to form.